EP 0174860 A3 19871111 - INFORMATION RECORDING AND READOUT
Title (en)
INFORMATION RECORDING AND READOUT
Publication
Application
Priority
US 65139684 A 19840914
Abstract (en)
[origin: EP0174860A2] A recording and readout information system having atomic scale densities comprises a recording medium having a carrier (16) and means (20, 30) to form a pattern of atomic paticles (18A) on the surface of the carrier. The atomic particles have an affinity for the carrier and can adhere to the surface to form a relatively adhesive and stable bond. The pattern of atomic particles produced on the carrier are representative of recorded information, e.g. binary represented information, of ultra high density based upon the size and spacing of such particles, which is in the range, for example, of 5 ANGSTROM (.5 nm) to 10 ANGSTROM (1 nm). A preferred embodiment of the invention comprises a recording medium with an adsorbent carrier, and means to form a pattern of adsorbate atomic particles on the surface of the adsorbent carrier, the adsorbate atomic particles having an adsorptive affinity for the adsorbent carrier due - at least in part - to electrical attraction characteristics between the adsorbate atomic partiles and the adsorbent carrier. Readout means (30), utilizing the tunnel current effect, is employed to determine the presence or absence of the atomic particles on the surface of the carrier and produce an electrical signal representative of the pattern of recorded information on the recording medium.
IPC 1-7
IPC 8 full level
B41M 5/20 (2006.01); B41M 5/24 (2006.01); B82B 3/00 (2006.01); G01N 13/10 (2006.01); G01N 13/12 (2006.01); G01Q 60/10 (2010.01); G01Q 80/00 (2010.01); G11B 9/00 (2006.01); G11B 9/08 (2006.01); G11B 9/14 (2006.01); G11B 11/03 (2006.01); G11B 11/08 (2006.01); G11B 20/00 (2006.01)
CPC (source: EP)
B82B 3/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); G11B 9/00 (2013.01); G11B 9/08 (2013.01); G11B 9/14 (2013.01); G11B 9/1409 (2013.01); G11B 9/1463 (2013.01); G11B 9/149 (2013.01); G11B 11/03 (2013.01); G11B 11/08 (2013.01); G11B 20/00086 (2013.01); G11B 20/0021 (2013.01); B82Y 10/00 (2013.01)
Citation (search report)
- [A] US 4032901 A 19770628 - LEVINTHAL CYRUS
- [A] EP 0038865 A1 19811104 - CHRISTENSEN ALTON OWEN SR
- [A] US 3814975 A 19740604 - WOLFE J, et al
- [A] EP 0027517 A1 19810429 - IBM [US]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0174860 A2 19860319; EP 0174860 A3 19871111; JP S6180536 A 19860424
DOCDB simple family (application)
EP 85306501 A 19850912; JP 19752185 A 19850906